Door at Treasure Coast HS racking sideways every time a kid pushes it open. Hospital fire-rated door grinding gear-on-gear at the corridor. Big-box exit door with the continuous hinge separating at the top corner. We service Select Hinges SL11, Roton 780-112, McKinney MCK-25, and Hager continuous geared hinges across PSL schools, medical, retail, and warehouse.
Continuous hinge repair in Port St. Lucie - geared aluminum and steel continuous hinges (Select SL11, Roton 780-112, McKinney MCK-25, Hager 780/790-series). Repair the gear track, replace damaged segments, or full-length replacement.
Most failures: gear wear from racking, top-corner separation from kick-in or wind-slam, screw walk-out at high-traffic schools and gyms. We rebuild before replace when the gear track is salvageable.
Pricing: $420-880 plus hardware for full-length replacement on a standard 84-inch door. Segment repair $260-520. School and hospital accounts get scheduled around summer break or low-occupancy windows.
A geared continuous hinge takes the entire weight of the door across its full height. When a Pemko or Roton hinge starts to bind at the top, drag on the threshold, or pop screws out of an aluminum frame, the door stops latching cleanly and the closer fights it on every cycle. We see this constantly on storefronts along PSL Boulevard and in the office suites at Riverwalk Port Salerno where high-traffic glass doors get abused 200+ cycles a day.
The usual culprits are stripped frame screws, a worn gear track, a misaligned closer pulling the door out of plumb, or a previous handyman fix that mounted the hinge with sheet-metal screws instead of the correct through-bolts. Each one is a different repair, and guessing wrong means the door is back open in a week.
We carry Pemko HD1100 and Roton 780 replacement stock on the van plus the through-bolt and rivnut kit to anchor into aluminum properly. Call (772) 284-5142 for a same-day quote.
Most continuous-hinge repairs and full swap-outs finish in 60 to 90 minutes on site. No second trip for a special-order part.
Repair (re-anchor, lube, shim) sits around $320. Full Pemko or Roton replacement runs $480 to $640 installed. Quoted on the phone.
Geared continuous hinges in clear and dark bronze anodized, plus the through-bolts and rivnuts to anchor them properly in aluminum storefront frames.
We size the hinge to the door weight so the closer can be tuned under 5 lbf opening force where ADA-path doors require it.
We do not just swap the hinge. We re-shim the door, reset closer back-check, and verify the latch alignment so the new hinge does not fail the same way.
Tell us the door brand and what is happening. We can usually tell over the phone whether you need a repair, a swap, or a frame-side fix.
Door companies want to sell you a whole new door. Handymen mount the hinge with the wrong screws and it fails again. We do continuous hinge work as a specialty.
Pemko HD1100 and Roton 780 series in standard finishes ride on the van. No 2-week distributor wait.
Stripped aluminum frame screws are 80% of continuous-hinge failures. We have the rivnut tool and stainless through-bolts to fix it permanently.
A new hinge will fail in 6 months if the closer is over-loading it. We adjust LCN, Norton, and Dorma closers as part of the job.
Hundreds of jobs on PSL Boulevard, Tradition, and St Lucie West aluminum storefronts. We know the common Kawneer and YKK frame quirks.
A standard 5-knuckle ball-bearing hinge (Stanley FBB199, Hager BB1279) is rated for 1.5 to 2 million cycles. A continuous geared hinge (Select SL11, Roton 780-112) is rated for 25 million cycles. On a Treasure Coast HS classroom door that opens 600-800 times a day, a 3-hinge ball-bearing set fails in 18-30 months. A continuous geared hinge on the same door runs 8-12 years before any service. Cost more up front, save the labor every 2 years.
The other reason: load distribution. Continuous hinges spread the door weight across the full 83 or 95 inches of the hinge edge instead of concentrating at three points. That matters on heavy fire-rated doors (90-180 lbs) common at PSL schools, hospitals (Tradition Medical, the Cleveland Clinic Tradition campus), and big-box retail. Doors sag less, jamb screws walk less, and the door stays code-compliant longer for fire-marshal inspections.
Where you'll find them in PSL: Treasure Coast High School, Centennial High School, St Lucie West K-8, the Cleveland Clinic Tradition outpatient buildings, Walmart and Target back-of-house doors, the larger restaurants at Tradition Square with kitchen-to-dining service doors, and most fire-rated stairwell doors in PSL hotels.
Gear wear and racking. Over years of use the aluminum gear teeth on Select SL11 and Roton 780-112 wear down. Door starts to rack (twist sideways) when pushed, then makes a grinding noise when opened slowly. Sometimes you can hear it from 50 feet down the corridor. Fix: full-length hinge replacement, usually $420-880 including hardware. We cannot rebuild a worn gear track - the geometry has to be precise to within 0.005 inches and once the teeth are rounded the part is done.
Top-corner separation. Heavy fire door, somebody kicks it open, the door pulls away from the frame at the top 6-12 inches. The continuous hinge stays bolted to both pieces but warps. On Select SL11 with the polymer bearing strip, the bearing strip extrudes out of the track and the door starts dropping. Fix: we straighten the warped section if possible (cold-set with a hydraulic press, on-site), replace the bearing strip ($60-140), and re-anchor with longer through-bolts into the steel frame. $260-520. If the aluminum is creased we replace the whole hinge.
Screw walk-out. Continuous hinges use 30-60 screws across an 84-inch run. On schools and gyms (Centennial HS, the parks-and-rec gym doors), the constant vibration walks the screws loose. Door starts pivoting on whichever screws are still tight, which damages the gear track and accelerates the gear wear failure. Fix: pull every screw, drop in larger-diameter through-bolts or threaded inserts (Heli-Coils for aluminum frames), torque to spec, re-shim alignment. $260-420 for a full re-anchor of one door.
We also see hinge-to-frame compatibility problems when a previous contractor mounted a stainless Roton onto an aluminum frame without dielectric isolators - galvanic corrosion eats the frame. Coastal accounts on Hutchinson Island are the worst for this. We use stainless steel hinges with isolator strips on every saltwater-adjacent job.
| Service | Typical Price | Notes |
|---|---|---|
| Continuous hinge full-length replacement (standard 84-inch, Select SL11 / Roton 780) | $420 - $880 | Plus hardware ($180-380). Most common job. |
| Segment repair / straighten (top or bottom corner, no full replacement) | $260 - $520 | When the hinge is salvageable - polymer strip + cold-set + re-anchor. |
| Full re-anchor (screw walk-out fix, no hinge replacement) | $260 - $420 | Larger through-bolts, threaded inserts, torque to spec. |
| Stainless coastal upgrade (Hutchinson Island / waterfront) | $680 - $1,280 | Stainless hinge + dielectric isolator strip. |
| 95-inch tall door (school / hospital fire door) | $580 - $1,080 | Longer hinge, more screws, higher hardware cost. |
| Pair of doors (double-leaf entry) | $780 - $1,640 | Both leaves done in one visit. |
| Specialty / discontinued continuous hinge order-in (2-5 day) | $880 - $1,880 | Older McKinney MCK-25, custom anodized finishes, oversized. |
| Decision | Doctor Lockout | Hardware distributor | General contractor | Let it rack until door falls |
|---|---|---|---|---|
| Same-day diagnosis on-site | Yes | No - takeoff first | 3-7 day site visit | N/A |
| Hardware on the van for common sizes | Yes (Select SL11, Roton 780-112) | No - order from supply | No - subs it out | N/A |
| Repair before replace when feasible | Yes | Sells full replacement always | Replaces the door | Door fails fully |
| Hardware at MSRP | Yes | 20-40% markup typical | Stacked markups | N/A |
| Total cost on standard 84-inch replacement | $420-880 + hardware | $680-1,200 + your labor | $1,400-2,800 | $2,400-4,800 (door + frame + hinge) |
Real person on the phone in under 2 rings. Locksmith on-site in 15-30 minutes. Honest price before any tools come out.
Call (772) 284-5142Racking = the gear teeth in the hinge are worn enough that the door twists sideways when it opens. The grinding noise is metal-on-metal where the polymer bearing strip used to cushion the gears. Once you hear racking the hinge is past rebuild and needs full-length replacement. The good news: catching it at racking-noise stage usually saves the frame. Let it run another 6-12 months and the frame screws walk out and you replace the frame too.
Standard 84-inch Select SL11 or Roton 780-112 replacement is $420-880 plus hardware ($180-380), so $600-1,260 all-in per door. 95-inch tall school doors run $580-1,080 plus hardware. Stainless coastal upgrades for Hutchinson Island are $680-1,280 plus hardware. Hardware is at MSRP with no markup.
About 30 percent of calls are repairable - usually top-corner separation from kick-in or wind-slam where the hinge itself is straight and only the bearing strip is shot. We replace the polymer bearing strip and re-anchor with longer through-bolts, $260-520. If the gear teeth are worn (you hear racking) or the aluminum is creased, it's a full replacement. The diagnostic is a 20-minute pull-and-inspect.
Select SL11 and Roton 780-112 rate for 25 million cycles. On a Treasure Coast HS or Centennial HS door that cycles 700 times a school day, that math gives you 8-12 years before service. Standard 5-knuckle hinges on the same door fail in 18-30 months. The premium pays for itself in 2 years of avoided labor.
Aluminum oxide. If your continuous hinge is stainless steel mounted to an aluminum frame, the dissimilar metals galvanically react in salt-air conditions. Hutchinson Island and Jensen Beach accounts get this constantly. The fix is a dielectric isolator strip between the hinge and the frame on the next replacement. We carry those and include them free on any coastal job.
Same-day diagnostic for any St Lucie County School District door. Repair scheduled around occupancy - we'd rather come back Saturday or after 3pm dismissal than work around 800 kids. Emergency fire-door failures we'll do mid-day if the door is on the egress path and the fire marshal is involved.
Continuous hinge work concentrates at Treasure Coast HS, Centennial HS, St Lucie West K-8, the Cleveland Clinic Tradition campus, Tradition Medical, big-box retail along US-1 and PSL Boulevard, plus warehouse and industrial accounts in the PSL Industrial Park off Range Line Rd. Coastal accounts on Hutchinson Island and Jensen Beach get the stainless + isolator upgrade.
Last updated: 2026-05-18
